{"product_id":"adjustable-billet-by-pass-regulator-3-8-npt-kit-12-879kit","title":"Adjustable Billet By-Pass Regulator 3\/8 NPT Kit 12-879KIT","description":"\u003cp\u003eAdjustable billet by-pass return style fuel pressure regulator 3\/8 NPT Kit with Fuel Pressure Gauge and Adapter Fittings\r\nBoost Reference - 1:1\u003c\/p\u003e\u003cp\u003eHolley Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley. They are precision machined from 6061-T6 billet aluminum for strength and durability. These regulators are adjustable from 4-65 psi and will handle both carbureted and EFI applications. A second pressure spring is included allowing you to increase the fuel pressure range up to 65 psi for EFI systems. They have 3\/8 NPT port sizes to adapt to your new or existing fuel lines. So, if you are currently running a carbureted system but plan to upgrade to EFI in the future, these regulators will have you covered either way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAdjustable from 4-65 psi for precise fuel pressure adjustments\u003c\/li\u003e\n\u003cli\u003eConstructed of billet aluminum with a black anodized base and a clear anodized top for good looks\u003c\/li\u003e\n\u003cli\u003eUsed in systems with a return line back to the tank\u003c\/li\u003e\n\u003cli\u003e(1) 3\/8\" NPT Inlet; (1) 3\/8\" NPT Outlet; and (1) 3\/8\" NPT return\u003c\/li\u003e\n\u003cli\u003eIncludes fitting for manifold reference\u003c\/li\u003e\n\u003cli\u003eIncludes an 1\/8 NPT gauge port\u003c\/li\u003e\n\u003cli\u003eBoost Reference - 1:1\u003c\/li\u003e\n\u003cli\u003eThe 4-15 psi carbureted spring comes installed in the regulator\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAdjustable\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEmission Code\u003c\/th\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFuel System\u003c\/th\u003e\n\u003ctd\u003eEFI\/Carb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFuel Type\u003c\/th\u003e\n\u003ctd\u003eGasoline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGauge Included\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGauge Port Included\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrade Type\u003c\/th\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInlet Gender\u003c\/th\u003e\n\u003ctd\u003eFemale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInlet Port Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/8Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInlet Port Quantity\u003c\/th\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInlet Size\u003c\/th\u003e\n\u003ctd\u003e3\/8\" NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInlet Type\u003c\/th\u003e\n\u003ctd\u003eNPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Pressure\u003c\/th\u003e\n\u003ctd\u003e65Pounds per Square Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Pressure\u003c\/th\u003e\n\u003ctd\u003e4Pounds per Square Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Bracket Included\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Type\u003c\/th\u003e\n\u003ctd\u003eInline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutlet Gender\u003c\/th\u003e\n\u003ctd\u003eFemale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutlet Port Diameter\u003c\/th\u003e\n\u003ctd\u003e3\/8Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutlet Port Quantity\u003c\/th\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutlet Size\u003c\/th\u003e\n\u003ctd\u003e3\/8\" NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutlet Type\u003c\/th\u003e\n\u003ctd\u003eNPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePort Quantity\u003c\/th\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eFuel Pressure Regulator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRebuildable\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReturn Size\u003c\/th\u003e\n\u003ctd\u003e3\/8 inch NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStyle\u003c\/th\u003e\n\u003ctd\u003eBypass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVacuum Port Quantity\u003c\/th\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarning\u003c\/th\u003e\n\u003ctd\u003eCalifornia Proposition 65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eLimited 90 Day\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":49186214445269,"sku":"12-879KIT","price":230.35,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2493\/0960\/files\/12-879kit-adjustable-billet-by-pass-regulator-3-8-npt-kit-12-879kit.jpg?v=1755523302","url":"https:\/\/moderndaymuffler.com\/products\/adjustable-billet-by-pass-regulator-3-8-npt-kit-12-879kit","provider":"Modern Day Muffler","version":"1.0","type":"link"}